Friction draft-gear for railway-car draft-rigging.



W. H. MINER.

FRICTION RAFT GEAR FOR RAILWAY CAR DRAFT RIGGING.

' APPLICATION FILI-:D AUG. I9. I9I6.

gg@ Patented Dec. 18H91? litiga! .5 5W v4 '--f WLZZLMaH /Wzer A TTORNE Y arsenic.v

WILLIAM H. MINER, or cHAzY, YNEW YORK.

v rarc'rroiv DRAFT-GEAR rerv RAILWAY-cnn DRAFT-Ricengo.

Application filed August 19,

To'aZZ whom t may concern:

Be it known that I, WILLIAM H. MINER, a citizen ofthe United States, residing at Chazy, in the county of Clinton and State .of New York, have invented a certain new and useful Improvement in Friction Draft-A Gears for Railway-Car Draft-Rigging, of which the following is a full, clear, concise, and exact description, reference being had' to the accompanying fdrawings, forming a part of this specification.

My invention relates to y'mprovements in friction draft gears for fiilway car draft riggmg The object of my invention 1s to provide an eiiicient and durable friction draft gear.

In the drawings forming a part of this specification, Figure 1 isla side elevation of a draft gear embodying my invention. Fig. 2 is a horizontal section on line 2 2 of' Fig. 1i and Fig. 3 is a cross section on line 3-3 of Fig. l.

Referring to the drawings, the numeral 4 indicates a draft gear shell comprising a spring cage 5 and a preferably integral friction casing 6. Friction elements 7 are mounted within the friction casing and spring elements 8 are mounted with-in the spring cage. The friction elements 7 comprise the friction shoes 9-9, a spreading member or wedge 10 and the interposed anti-friction rollers 11-11.' The spring elements 8 in the embodiment of my mvention shownin the drawings comprise the main springs 12-12, arranged side by side within the spring cage 5, each main spring having an inner coil 13 nested therein. The said springs are seated at their rear ends against the rear end of the spring cage 14 and at their forward ends against the movable spring seat or internal follower 15. A washer 16 is seated lagainst the shoulders 17 v provided near the rear ends of the friction shoes and-a two coil auxiliary spring 18 is mounted between the movable springl seat 15 and the washer 16. A connecting bolt 1S) extends from the movable follower 15 to thewedge 10 and has a countersunk head 20 at its rear end and is received within the wedge '10 at its forward end. lThe shell at the spring cage portion thereof is openv at the Ssides, as indicated at the numerals 22, and

forwardly of said openings and4 along the friction casing portion of the shell the said Specification of Letters Patent.

-portionI at one end and lPatented Dec. 18, A721912..I 191e. seriaino. 115,873.

shell is split on either Side, as indicated at 555' the numerals 122, forming the` friction-case ing into an upper and a lower section.' The friction casing is internally provided with y an annular groove 23 formed between the inturned forward shoulder 24 and the infl turned rearward shoulder 25. Within this. annular groove' is mounted the liuerj26, p the inner face 27 of which formsy alfriction-i n f `face against which vthe friction 'shoes are. z

adapted to engage. The shell along' the, g5

friction casing portion thereof is provided on either sidewith the upper andlower lateral extensions 28-28, respectively', the' said extensions being provided with aplurality of vertical registering p erforations 29" 70 to receive riveting means, as for instance the rivets 30-30. i Y In assembling the parts of the-draftgear, a shell is provided with the upper andlower portions sufficiently separated at the forward end to permit the passage into the annular groove of the liner 26., When the liner is placed in position, .the two portions of the shell are drawn together until the liner is tightly secured within the annular groove 30- and the upper and lower portions ofthe shell are then securely fastened together by the iiiveting means, as for instance the rivets 30. Thereupon, thefriction and spring elementsare assembled within the shell. Should a liner becomeworn, or-if its re lacement from ,this or any other' cause shou d be desirable,- Y

or otherwise remove the riveting means, and f thereupon remove the liner and replace it with a like liner.

I claim :f

1. As an article of manufacture, a friction shell for friction draft gears and the like,'95

said shellcomprising a plurality of separable members, a liner confined between said members, and means for rigidly securing said members of the shell together, the members of theshell and said liner having coperat- '100- ing means` to ,prevent` relative longitudinal movement of the liner with respect to the shell when the members of the latter are rigidly secured together.

2. As an article of manufacture,..a oo mbined friction shell and spring casing, said shell andspring casino having a cylindrical an integral substan- Q momie tially rectangulai spring casing at the other ing shoulders, and means for tightly and end, the Sljring casing being open at its Sides rigidly holding the sections of the shell and the s ell portion being formed of sepaaround the liner. 1@

y rable sections, said shell portion being split n Witness that I claim the foregoing to thereby permit the spreading apart therehave hereunto subscribed my name this lt of, a liner mounted Within the shell, said day of Aug., 1916. shell and linen having eoperating engag- WLLAM H. MXNER. 

